(American Physiological Society) Larger tropical stingless bees fly better in hot conditions than smaller bees do and larger size may help certain species better tolerate high body temperatures. The findings run contrary to the temperature-size ‘rule,’ which suggests that insects that rely on the external environment to control their temperature are larger in cold climates and smaller in hot ones. The research will be presented at the American Physiological Society’s (APS) Comparative Physiology: Complexity and Integration conference.